366 Roosevelt Wild Life Bulletin 



PAGE 



Figure 91. Lower end of the Grand Canyon, near Tower Fall. The canyon 

 rim is one of the favorite winter homes of mountain sheep. 

 This is where Roosevelt and Biuroughs camped and watched 

 them descend the cliffs 600 feet to the river, in April, 1903. 

 Photo by Edmund Heller, 192 1 449 



Figure 92. Bighorn sheep scenting danger. They may be seen occasionally 

 from the touring busses as one passes over Mount Washburn. 

 Photo by Edmund Heller, 1921 450 



Figure 93. Bighorn rams grazing on the dry hillsides in late autumn. Photo 



by Edmund Heller, 192 1 450 



Figure 94. A group of old rams grazing through the snow on a sagebrush 



fiat. Photo by Edmund Heller, 192 1 451 



Figure 95. A band of old rams, closely bunched like domestic sheep, crossing 



a plateau. Photo by Edmund Heller, 1921 451 



Figure 96. Part of the so-called ' ' tame herd ' ' of buffalo in the Lamar Valley 

 in September, 1921. Secretary Fall's party observing the 

 herd. Photo by Edmund Heller 452 



Figure 97. A closely packed herd, including all ages, at the buffalo ranch 

 in the Lamar Valley. Specimen Ridge in the background. 

 Photo by Edmund Heller, 1921 452 



Figure 98. Part of the buffalo herd crossing the Lamar River in September, 

 the huge old bulls leading the way. Photo by Edmtmd 

 Heller, 192 1 ." 455 



Figure 99. Old bison bulls held temporarily in the big corral at Mammoth in 

 midsummer. These bulls approximate a ton in weight and are 

 swift and dangerous antagonists. Photo by Edmund Heller, 

 1921 •.• 455 



Figure 100. A rear guard of the buffalo herd crossing the Lamar Valley in 

 winter. The storm-swept heights of Specimen Ridge and the 

 Fossil Forest bej'ond. Photo by Edmund Heller, 1921 456 



Figure loi. At the buffalo ranch in winter, where the " tame herd " now 

 numbering about 600 is fed in immense corrals. In spring the 

 herd is released and disperses to its natural grazing range on 

 the mountain slopes. Photo by Edmund Heller, 1921 456 



Figure 102. An antelope buck guarding his harem in September on the summer 

 range in the Lamar Valley. The antelope usually keep to the 

 open range, unlike the deer in summer. Photo by Edmund 

 Heller, 192 1 459 



Figure 103. The antelope on their winter range along the Gardiner River 

 flats, November 18, 1921, just after the first snows in the 

 valley. Photo by Edmund Heller 459 



Figure 104. Part of the antelope herd in their present winter home, along the 

 Gardiner River fiats, at 5,400 feet, the lowest elevation in 

 Yellowstone Park. Electric Peak, the highest point in the 

 Park, towers nearly 6,000 feet above. Photo by Edmund 

 Heller, 192 1 460 



Figure 105. The entire antelope herd in the Gardiner Valley near the Park 



boundary, November 15, 1921. Photo by Edmund Heller. . . . 460 



Figure 106. A band of prong-homed antelope, showing their characteristic 

 bounding gait and flaring rump patches. Photo by Edmund 

 Heller, 1921 461 



Figure 107. Frightened antelope, showing the appearance of the long, white 

 hair of the rump when erected. This " flaring " is an alarm 

 signal to other antelope. Photo by Edmund Heller, 192 1 461 



Figure 108. An antelope with fully developed horns in October a month before 

 the horns are shed. Note the smooth white rump patch, 

 indicating that the animal is not disturbed. Photo by 

 Edmund Heller, 1921 461 



Figure 109. Weathered shells of antelope horns, the tips o^ which have been 

 gnawed by rodents. These are cast in late autumn. Photo 

 by Edmund Heller, 192 1 462 



